1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ac3ed5d3e208852a237c563666a4e469f07924055298d9bc5713e9ceac1c963. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/90a3bd1d-194c-4853-b13b-3203d94a92a8.json and https://artists.proofprofile.net/proofs/artist/90a3bd1d-194c-4853-b13b-3203d94a92a8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x208cd9d441c71751b7de66827aa8f415a8a6550418465339742b59d73bc4cab3. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AR8L71300373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b231958deeafd580e828846e768976ca61edfd676eaa6958a340d106a69bc4e. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T07:30:17Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AR8L71300374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65b572c6eae161ef3a30655521cb8bff6ead4e92a06cd544cade06b7d2b29d17. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AR8L71300376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x499e74f10e3d1aee0adce156667d77315a8daa0483f023e85d777506dd158044. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AR8L71300378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4a03380ec8aac254875e4770f4245ebd8ca861aaa734b3d1cdf258e8ba3a382. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AR8L71300380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b8ed942c2c0d77c503029812c339fe76f9acc2f5e58a9c0e4b1a4f114bba5d9. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AR8L71300381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fb6091e929c43e210edcb29a90845b1548c277ce498f7ed833760eb72ecea56. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AR8L71300382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb9915314c4a45c2c0ac95692bc12f7710e02da16d9e290dace86fb71353a491. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T20:24:45Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AR8L71300384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8de400c79e1c6514b6cd65be4740b048c2fba967d0c9878317f152181d03e23f. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AR8L71300385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68fa1309f1256cd0d5046450c52e50fda49960f126b24cd00972e88f7bbd1373. Chain 2 (Bitcoin): anchored in block 957965 (2026-07-14T07:07:52Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AR8L71300386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e5ff3521c83ee3497cfdb647c0938db7c3fbd53ddf600fcd0f0b384ffbea909. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AR8L71300398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6fab18b0c5fd1b6fe8acc7a9e030d8dae5cc8461bbc3eb24fb24b13fc423e0f. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AR8L71300400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f17449399573f3d5c93f20f56fdf08516999ebc8d6314225056d2082a0df817. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AR8L71500016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99082b5dcb4130ccdb0a923e4dfd4a17338d54cd49df3245e6e2c7648bf89a78. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AR8L71500017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddb5feb8e509b6afddcae594b90757253a341cb45185ebf69bde24810e230166. Chain 2 (Bitcoin): anchored in block 958658 (2026-07-19T04:09:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AR8L71500024.
Chacarera para Mi Vuelta / Entre a Mi Pago Sin Golpear (En Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d51252328c7ad82a11b7b48da21f459e2877e2242b210dc20418d2a5f03a120. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AR9GL2300035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe48406b0072e70341cbb8c50eb67681eba6cfa42c1f275ad5d271a3ca5e4daa. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BXBOO2100004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x349dbbea3f57cad222ca4b87c54d528c845a78cea47fd9179fc23bc3ff94be0b. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AR8L71402330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bf3a65159a879b4ca7c83ef919da1352a693c50b88d01eef899c534182db17c. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AR8L71600381.